Prinivil (Lisinopril Tablets) use
Prinivil (Lisinopril Tablets) is in a group of drugs called ACE inhibitors. Prinivil is used to treat high blood pressure (hypertension), congestive heart failure, and to improve survival after a heart attack. This medication may also be used to help protect the kidneys from damage due to diabetes.

Dosage 
Take this medication by mouth, usually once a day or as directed by your doctor. You may take this drug with or without food. Use this medication regularly in order to get the most benefit from it. To help you remember, use it at the same time each day.
The recommended adult dose of Lisinopril ranges from 2.5 mg to 40 mg daily, depending on the condition being treated.